Knife.



S. PAULSON.

KNIFE.

APPLICATION FILED JAN. 19. I917.

1,252,86 Patented Jan. 8,1918.

gWEN PH UL5ON SWEN PAULSON, OF HEBER CITY, UTAH.

KNIFE.

Specification of Letters Patent.

Patented J an. 8, 1918.

Application filed January 19, 1917. Serial No. 143,330.

To all whom it may concern:

Be it known that 1, Swan PAULSON, a citizen of the United States, residing at Heber City, in the county of Wasatch and State of'Utah, have invented certain new and useful Improvements in Knives, of which the following is a specification, reference being had to the accompanying drawlngs.

This invention comprehends certain new and useful improvements in knives, and relates particularly to the type of knives commonly called jack knives, pen knives, or

pocket knives, althoughit is to be under-.

stood that the invention is not limited in this regard.

The invention has for its primary object a practical, durable and eliicient construction of knife wherein the blade and handle are so connected together that they may be securely held in extended relation to each other without any danger of the blade accidentally closing upon the fingers of the user, and whereby also, by the same construction and arrangement of parts, the blade will be securely held nested in the handle and all possibility of accidental opening will be positively precluded.

And the invention also aims to generally improve devices of this kind so as to render tlem'more useful and commercially desira le.

' \Vith these and other objects in view, as

. will more fully appear as the description proceeds, the invention consists in certain constructions, arrangements and combinations of the parts that I shall hereinafter more fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which- Figure 1 is a side elevation of a knife embodying the improvements of my invention, the blade being closed.

Fig. 2 is a similar view with the blade open and with the latch member turned out at an angle to the handle.

Fig. 3 is an edge view with parts in section.

Fig. 4 is a transverse sectional view on the line H of Fig. 3.

Figs. 5, 6 and 7 are fragmentary sectional side elevations illustrating the operation-of the device.-

Qorresponding and like parts are referred to 1n the accompanying drawing andfollowlng description by like reference characters.

Referring to the drawing, the numeral 1 designates the blade of my improved knife and 2 the handle thereof as a whole. The handle 2 embodies two side plates or bars 3, preferably formed of metal and connected together in a yielding manner. In the present embodiment of'the invention, although it is to be understood that the invention is not limited in this regard, the bars 3 are longitudinally channeled, as indicated at 1'1, and are formed of a single strip of spring steel doubled upon itself to form a connecting member 5, this construction and arrangement of parts permitting one of the side bars 3 to be pressed, by the hand of the user of the knife, toward the other bar, for a purpose hereinafter described. The blade 1 is formed with a shank 6 which is substantially square, as shown, whereby it may be securely held in between the channels 4 of the bars when they are pressed toward each other. 7 designates a pivot'pin for the blades, said pin being preferably riveted or otherwise rigidly secured at one end to one of the side bars 3 of the handle and extending at its other end through an aperture 8 formed in the other side bar, said pin being formed at this end with a transversely extending head9.

It is to be understood that the shank .6

of the blade 1 is apertured to receive thepin 7 whereby the blade is pivotally mounted thereon and connected to the handle, and also pivotally mounted upon the pin 7 onthe outer face of the apertured side bar 3 a swinging latch member 10 is mounted, said latch member being formed in its outer face witha transversely extending recess 11 designed to receive the transversely extending head of the pin 7 when the latch member is turned out into angular relation to the handle whereby in this position of the parts, the side bars 3 will be permitted by their spring action to move laterally one from the other, and release the head 6 so that the blade 1 may be turned either to an open or closed It will now be understood that upon turning the latch member 10 to a position in alinement with the handle, as best illustrated in Fig. 3, the jaws formed by the position.

ends of the channeledside bars, 3, will close upon the shank 6 of the blade 1 and securely hold th biaiinit-either a'jfiilly' opefiedT or closed position; Preferably'thelatchmem-' ber 10 is formed on its outer face with one or more longitudinal recesses"12 -to"*engagef with the head 9 when the latch member is in its operative position lying in alinementwith the handle; and preferably one end of" cated at g 1 1,, whereby; the 0f the member from its inoperative position in. angular relation to the handlein a dire'c' tion to, properly} close.th'e'flatch member against the handle will beffacilitated, as. the head easily rid'e'npon these inclined surfaces,1 l".,,

.,I1 m 'th' .fe gie eide e ei nn j e l wi h'thla einn n i dr w 2;: h operation of improved knifefwill be ap parent, Inthe practical useofthedevice, whenth'e bladel lis inl'c'los'ed position, it will be received:withintheehannels9 of the side bars fi and the latchmember" l Owill lie in; l9ngitudinal anne e e against the outer f ce Y enell fithe; deb rs W h nae term hepene 'f. n ehe n bars 3t 'yvill se'cjurel'y embrace thebladeshank e 6. betwee hem and e ectueIIiI-P i y 35' aecidentalfopening of thelknife. In order to open the knife it is only necessary for the user oswingethe teh m i b ,d t r y' into angular position, relative to the hem; di whee pee t e-h 1 t pin 7 l.

H10 einto lthef recess l; and'fl'the side bars 3' n1 oeeieneneel aep i giew y' frb a other, and thesh'a'nl'r 6 will be released so tha the lad may hemme u t e p v .1 t neieee o eeiiieea ep h latch m beiilq'is turned to the" position eliii l ri d .eeee e we 1 .1 e e 1 r e ll l w s l s P- wardguponthe head 91 and causing the jaws t rment the. ends f hee a nel members 3, to; again securely embrace the blade shank 6 n hQ d fi lblQClQI .12 e h lethe at mpany ins' rawi g i grates hat ,Ibeheveto be the preferred embodiment of myl invention, it is to be under- 't dl thafitheliiiyen en slietll ii d t r t 'n ,.t ,t,v ri s cha es may be m in the sj n l lt eiia a ran m t .ifid br -P t' e s', 9f he Par nithei f e" from s ope of he invention as defined in the 'il i tli ii e W r fie -ei h a., ,bl de a t 111 141 ,pii wh lh he b ads 1s mdunted'pessmg thfongh "said side barsai'id having ahead, and a latch member 'engaging'between said head and one of the side bars and when turned in one position having-wedging engagement wlth the head to urge the side bars toward each other and iii' 'another position permitting the side bars pin being formed at one end with a h'ead,,80

and a swinging latch member rotatably] mounted upon said pin back of the head'a'nd" designed for wedging engagement therewith whereby" to hold the side bars clamped upontheblade.

' s5 3, As a new article of manufacture,'the

herein-described knife, comprising a blade,

a handle embodying channeled side bars and a connecting member yieldinglyjoining said 7 bars together atone end, a pivot pin con n'ected at one end to one of the side bars, and c passing freely through the other one, the" blade being pivotally mounted on said pin, and the pin being formed at one'end with'a' head, and a swinging latch member mounted upon said pin back of the head and formed with a recess to receive the head, said recess ha'vingan inclined side wall for the purpose specified; c

4L- As" a new article of manufacture, the herein described knife, comprising a blade, a handle embodying channeled side bars'and'. a connecting member yieldingly joining said side bars together at one end but resiliently urging'said side bars apart, a pivot pin con-V nected at one endto one of the side bars and V passing freely through the other one, the" blade being pivo-tally mounted on said pin, andthe pin being formed at one end with a. head, and a swinging latch member mounted upon said pin back of the head and formed with a recess toreceive the latter, and with an inclined end, the handle being formed with a cheek piece adapted to engage the end of said latch member to limit the swinging movement thereof in one direction.

5. As a new article of manufacture, a knife comprising a blade having a shank, a handle comprising channeled side bars connected to eachother by an integral resilient member urging the side bars apart, a pivot pin connected at one end to one of-the side bars and passing freely through the other side b ar,on which pin the blade is pivotally' mounted, said pin being formed on one end 125 with a head, andaswinging latch member mounted upon the pin inward of the head and bearing fiat against one of the sidebars, said latch member having a transversely extending" recess intersecting the o ening for 130 the pivot pin, said recess, when the latch is to draw the side bars toward each other and shifted into a position at right angles to the grip the shank of the knife. l3 handle, receiving the head of said pin and In testimony whereof I hereunto affix my permitting the slde' bars to move away from signature in the presence of two witnesses.

each other to thereby release the knife from SWEN PAULSON.

its engagement by the jaws formed on said Witnesses:

side bars, said latch when turned into a posi- CHASE HATCH,

tion parallel to the handle engaging the head ANNA Porn.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Ratents,

J Washington, D. G. 

